CVE-2026-107623 vulnerability in Red Hat Products
Published on October 8, 2026
Keycloak-services: keycloak-services: oidc dcr read-modify-write silently disables offline token revocation
A flaw was found in the OIDC Dynamic Client Registration (DCR) component of Keycloak. A bug in the response serialization causes the backchannel logout offline token revocation setting to be omitted from responses. When a client performs a standard update, this missing information causes the setting to be silently disabled. As a result, offline tokens may remain valid even after a user session is terminated via backchannel logout.
Vulnerability Analysis
CVE-2026-107623 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-107623 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-107623
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